I just got a Cuttlebug and love it so far. Bought Holtz Alterations Movers and Shapers Dies Mini Owl and Crescent Moon. Does anyone know how to get this to cut? It is making an impression on card stock (tried different weights) but not cutting the image. Maybe my "sandwich" is all wrong? Tried B + B and no luck with that and other combinations.

You need to use something to put the movers and shapers die in. The tray below is good for that.
This youtube link (in french, but the video is what counts) will show you how it works:https://www.youtube.com/watch?v=mPMEH4wlx40

Before I got a tray, I used the spellbinders tan rubber mat and a paper shim on the back side of the m&s die. That sandwich was then "cutting plate -> rubber mat -> paper shim -> m&s die -> paper I want to cut into -> cutting plate".